Least Common Multiple &Greatest Common Factorof two of numbers

Overview:In this lesson you will learn how to find the Greatest Common Factor & the Least Common Multiple. If you do not understand the steps there is example below.This will be a simple way of understanding GCF & LCM.

LCM steps with Example

1. First you will write down your two numbers on a sheet of paper.Example:2 42. Then you will write about five or so of the numbers that go into your two numbers. (do this to each number for LCM)Example: 2: 0,1, 24: 0, 1, 2, 43. If you don't find a lowest number in the five Keep going until you find the lowest number they both go into. (sometimes the lowest number can be one of the two numbers itself )4. Then when you find your answer circle it or highlight it, this is a good way for your teacher to understand your answer.Example 2:0, 1, 24:0, 1, 2, 45. The answer to this problem is 2 because it is the smallest number that goes into both 2 & 4.

GCF steps with Example1. First you will write down your two numbers on a sheet of paper.Example: 3 42.Then writ down about five or so of the multiples that go into your two numbers. ( do this to each number for GCF)Example: 3: 6, 9, 12, 15, 18 4: 8, 12, 16, 20, 243. If you don't find a highest number in the five Keep going until you find the highest number
they both go into. (sometimes the highest number can be one of the two
numbers itself )4. Then when you find your
answer circle it or highlight it, this is a good way for your teacher
to understand your answer.Example: 3: 6, 9,12, 15, 184: 8,12, 16, 20, 245. The answer to this problem is 12 because it is the biggest number that goes in to 3 & 4.